Driving home tonight on country road I hit the full beam - nothing, then a flicker, then full beam. Had to drop to dipped for oncoming car, then back to full beam, flicker flicker flicker flicker flicker flicker flicker and on it went til it finally stayed on, dipped beam again then back to full and all was well. Headlights not used for three days prior. Both headlights doing it, at the same time.

Just a gremlin (will have to remember to warm them up before MOT time!), or something more to be concerned about? .
Experience is the only genuine knowledge, but as time passes, I have forgotten more than I can remember
Volvo V70 P2 2006 2.4 Petrol 170bhp Estate SE
MG Midget Mk1 1962

Previous: L322 Range Rover TDV8 3.6 2008; L322 Range Rover TD6 3.0 2002; P38A Range Rover V8 1999

try the mains when the engine is off but the ignition is on, you'll be able to hear them sticking [or not]

btw , could it have been the halogen mains flickering?

I will, but I always had dipped beam, so it was as if the "eyelids" on the xenons were flicking up and down from duipped to full beam of their own accord, not quite getting set ? .
Experience is the only genuine knowledge, but as time passes, I have forgotten more than I can remember
Volvo V70 P2 2006 2.4 Petrol 170bhp Estate SE
MG Midget Mk1 1962

Previous: L322 Range Rover TDV8 3.6 2008; L322 Range Rover TD6 3.0 2002; P38A Range Rover V8 1999

Often the switch (ind stalk) starts to break down

Ah, thanks CTC  .
Experience is the only genuine knowledge, but as time passes, I have forgotten more than I can remember
Volvo V70 P2 2006 2.4 Petrol 170bhp Estate SE
MG Midget Mk1 1962

Previous: L322 Range Rover TDV8 3.6 2008; L322 Range Rover TD6 3.0 2002; P38A Range Rover V8 1999